Spark arrester



' s. BALDYZAR Dec; 1 1929.

SPARK ARRESTER Filed March 28, 1927 Stephen 55/0 25.

Patented Dec. 10, 1929 PTENT STEPHEN BALIDYZAR, OF MILWAUKEE, WISCONSIN SPARK ARRESTER Application filed March 28, 1927.

This invention relates to spark arresters.

Objects of this invention are to provide a novel form of spark arrester for locomotives which is so constructed that a minimum obstruction to the outward flow of gases is produced by the device, and in which the arrester is so constructed that the larger particles entrained by the traveling gases are deflected downwardly and are prevented from clogging up the screened portion of the arrester.

Further objects are to provide a spark arrester which is of sturdy and practical construction and which may be readily produced and applied.

An embodiment of the invention is shown in the accompanying drawings in which:

Figure 1 is a fragmentary sectional view through the forward upper portion of a locomotive;

Figure 2 v is a view looking downwardly upon the spark arrester with a portion of the boiler shown in section.

Referring to the drawings, it will be seen that a locomotive boiler has been indicated by the reference character 1, as provided with a plurality of fines 2 opening through the front plate 3 into the forward compartment 4. The smoke stack is indicated by the referonce character 5. This smoke stack is provided on its underside with a conical screen 6 whose lower end is carried by a conical metal member 7 which terminates in a down wardly directed point. This metal member has a plurality of angle irons 8 diverging therefrom and secured to an annular angular member 9, such member being attached to the underside of the upper boiler plate, as shown in Figure 1. The angle irons 8 thus form diverging braces for the wire mesh truncated cone 6 and are joined to the metal cone 7 which serves to part the gases at the tip of the cone and permit their ready distribution around the arrester.

Further than this, it is to be noted that a baffle plate 10 is annularly positioned within the compartment 4 and is rigidly secured in place. It is preferably reenforced by an angular lower member 11 secured to its lowest edge, as shown in Figure 1. This mem- Serial No. 179,055.

ber 10 is curved or arched, as may be seen from Figures 1 and 2, and is so positioned that it directs the blast of gases from the tubes 2 downwardly and allows them to rise up wardly so that all portions of the screen cone 6 are active and thus the maximum flow of gases is obtained without any predominance of flow at any given point through the wire cone.

The deflector 10 serves another purpose in that it not only protects the cone from a direct blast of the heated gases, but also downwardly directs any solid particles of material size which are carried by the flowing gases. Thus, the cone is protected by the double cc (:5 tion of the deflector 10.

It will be seen, therefore, that a very simple and study type of spark arrester has been provided by this invention which is admirably suited for use on locomotives.

Further, it will be seen that the device may be very readily constructed in a simple and easy manner.

Although the invention has been described in considerable detail, such description is intended as illustrative rather than limiting as the invention may be variously embodied and as the scope of such invention is to be determined as claimed.

I claim:

A spark arrester comprising a conical wire mesh member having a solid lower end, said conical member being adapted for attachment to the lower end of a stack, an inclined arcuate shaped baifle plate positioned at one side 5 of said conical member and extending downwardly to approximately the position of the lower end of the conical member, and an arcuate lower member secured to the lower edge of the baffle plate to reinforce the same.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of Wisconsin.

STEPHEN BALDYZAR. 95 

